150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.Approximately how many students had test scores with standardized values between -0.675 and 1?
A. 37
B. 75
C. 140
D. 88
E. none of these
Answer: D
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Provide an appropriate response.Using ordinary time, a loan that starts on May 15 and is due to be paid August 15 would have a total duration of 92 days.
A. True B. False
Solve the variation problem.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 14 volts are applied, the current is 3 amperes. What is the current when 23 volts are applied?
A. 4.67 amperes B. 40 amperes C. 4.93 amperes D. 107.333333 amperes
Solve the system by the substitution method.
A. (7, 3), (3, 7), (21, 1), (1, 21) B. (7, 3), (3, 7) C. (7, 3), (-7, -3), (3, 7), (-3, -7) D. (7, 3), (-7, -3)
Translate to a proportion. Do not solve.9.6 is what percent of 17.3?
A. 
= 
B. 
= 
C. 
= 
D. 
= 